Tests fail without ipywidgets #912
Description
test_interactive is not skipped if ipywidgets is not available. Was no problem in version 2.21.3. Related PR: #873
Log:
I: pybuild base:240: cd /<<PKGBUILDDIR>>/.pybuild/cpython3_3.11_iminuit/build; python3.11 -m pytest tests
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........................................................................ [ 23%]
...........................................FFF.......................... [ 35%]
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........................................................................ [ 59%]
............................................................s........... [ 71%]
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...........................................X............................ [ 95%]
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=================================== FAILURES ===================================
_______________________________ test_interactive _______________________________
@pytest.mark.filterwarnings("ignore::DeprecationWarning")
def test_interactive():
> import ipywidgets
E ModuleNotFoundError: No module named 'ipywidgets'
tests/test_draw.py:140: ModuleNotFoundError
___________________________ test_interactive_raises ____________________________
@pytest.mark.filterwarnings("ignore::DeprecationWarning")
def test_interactive_raises():
def raiser(args):
raise ValueError
m = Minuit(lambda x, y: 0, 0, 1)
# by default do not raise
> m.interactive(raiser)
tests/test_draw.py:232:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
self = (Param(number=0, name='x', value=0.0, error=0.1, merror=None, is_const=False, is_fixed=False, lower_limit=None, upper_...r=1, name='y', value=1.0, error=0.01, merror=None, is_const=False, is_fixed=False, lower_limit=None, upper_limit=None))
plot = <function test_interactive_raises.<locals>.raiser at 0x7f9e52ec25c0>
raise_on_exception = False, kwargs = {}
def interactive(
self,
plot: Callable = None,
raise_on_exception=False,
**kwargs,
):
"""
Return fitting widget (requires ipywidgets, IPython, matplotlib).
A fitting widget is returned which can be displayed and manipulated in a
Jupyter notebook to find good starting parameters and to debug the fit.
Parameters
----------
plot : Callable, optional
To visualize the fit, interactive tries to access the visualize method on
the cost function, which accepts the current model parameters as an
array-like and potentially further keyword arguments, and draws a
visualization into the current matplotlib axes. If the cost function does
not provide a visualize method or if you want to override it, pass the
function here.
raise_on_exception : bool, optional
The default is to catch exceptions in the plot function and convert them
into a plotted message. In unit tests, raise_on_exception should be set to
True to allow detecting errors.
**kwargs :
Any other keyword arguments are forwarded to the plot function.
Examples
--------
.. plot:: plots/interactive.py
:include-source:
"""
with warnings.catch_warnings():
# ipywidgets produces deprecation warnings through use of internal APIs :(
warnings.simplefilter("ignore")
try:
> from ipywidgets import (
HBox,
VBox,
Output,
FloatSlider,
Button,
ToggleButton,
Layout,
Dropdown,
)
E ModuleNotFoundError: No module named 'ipywidgets'
E
E Please install ipywidgets, IPython, and matplotlib to enable interactive
iminuit/minuit.py:2236: ModuleNotFoundError
_______________________ test_interactive_with_array_func _______________________
@pytest.mark.filterwarnings("ignore::DeprecationWarning")
def test_interactive_with_array_func():
def cost(par):
return par[0] ** 2 + (par[1] / 2) ** 2
class TraceArgs:
nargs = 0
def __call__(self, par):
self.nargs = len(par)
trace_args = TraceArgs()
m = Minuit(cost, (1, 2))
> m.interactive(trace_args)
tests/test_draw.py:251:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
self = (Param(number=0, name='x0', value=1.0, error=0.01, merror=None, is_const=False, is_fixed=False, lower_limit=None, uppe...=1, name='x1', value=2.0, error=0.02, merror=None, is_const=False, is_fixed=False, lower_limit=None, upper_limit=None))
plot = <test_draw.test_interactive_with_array_func.<locals>.TraceArgs object at 0x7f9e53d51690>
raise_on_exception = False, kwargs = {}
def interactive(
self,
plot: Callable = None,
raise_on_exception=False,
**kwargs,
):
"""
Return fitting widget (requires ipywidgets, IPython, matplotlib).
A fitting widget is returned which can be displayed and manipulated in a
Jupyter notebook to find good starting parameters and to debug the fit.
Parameters
----------
plot : Callable, optional
To visualize the fit, interactive tries to access the visualize method on
the cost function, which accepts the current model parameters as an
array-like and potentially further keyword arguments, and draws a
visualization into the current matplotlib axes. If the cost function does
not provide a visualize method or if you want to override it, pass the
function here.
raise_on_exception : bool, optional
The default is to catch exceptions in the plot function and convert them
into a plotted message. In unit tests, raise_on_exception should be set to
True to allow detecting errors.
**kwargs :
Any other keyword arguments are forwarded to the plot function.
Examples
--------
.. plot:: plots/interactive.py
:include-source:
"""
with warnings.catch_warnings():
# ipywidgets produces deprecation warnings through use of internal APIs :(
warnings.simplefilter("ignore")
try:
> from ipywidgets import (
HBox,
VBox,
Output,
FloatSlider,
Button,
ToggleButton,
Layout,
Dropdown,
)
E ModuleNotFoundError: No module named 'ipywidgets'
E
E Please install ipywidgets, IPython, and matplotlib to enable interactive
iminuit/minuit.py:2236: ModuleNotFoundError
=========================== short test summary info ============================
SKIPPED [1] tests/test_without_ipywidgets.py:5: could not import 'ipywidgets': No module named 'ipywidgets'
SKIPPED [1] tests/test_repr.py:347: could not import 'unicodeitplus': No module named 'unicodeitplus'
XPASS tests/test_tabulate.py::test_matrix https://github.com/scikit-hep/iminuit/issues/840
FAILED tests/test_draw.py::test_interactive - ModuleNotFoundError: No module ...
FAILED tests/test_draw.py::test_interactive_raises - ModuleNotFoundError: No ...
FAILED tests/test_draw.py::test_interactive_with_array_func - ModuleNotFoundE...
3 failed, 599 passed, 2 skipped, 1 xpassed in 11.83s
E: pybuild pybuild:388: test: plugin pyproject failed with: exit code=1: cd /<<PKGBUILDDIR>>/.pybuild/cpython3_3.11_iminuit/build; python3.11 -m pytest tests